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Welsh phonetic spelling of the word "Fuck", first coined by UKH on the Rugby Rebels / Now Rugby forum. Similar to the Irish use of the word "feck".

Verb: vulgar.

1. Have sexual intercourse with (someone).

2. Visit considerable violence (upon someone).

Noun: vulgar. An act of sexual intercourse.
"I'm going to ffwc you up badly"
"I'm going to ffwc you senseless"
by Mroo Gauafau March 08, 2012
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